OEM Mechanical Lock Nut
(Exhaust Manifold)
When installing new aftermarket headers, new hardware should be used. An even clamping force is required to keep the header tight against the head in order to seal the exhaust gasket properly. The studs on your truck may be 20 to 30 years old, and we can tell you from experience that it is cheaper and easier to replace studs then it is to remove broken ones.
OEM Toyota Part #: 90179-10175
NOTE: This Toyota Nut is a Mechanical Locking Nut M10 X 1.25 thread pitch. If you’re looking for the OEM stud for this nut, see Part #: 1045039.
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- 1975-1980 20R 2.2L Engines (X8)
- 1981-1995 22R 2.4L Engines (X8)
- 1983-1995 22RE 2.4L Engines (X8)
- 1995.5-2004 2RZ 2.4L Engines (X8)
- 1995.5-2004 3RZ 2.7L Engines (X8)
- 1988-1995 3VZ 3.0L Engines (X12)
- 1995-2004 5VZ 3.4L Engines (X12)
6 Reviews Hide Reviews Show Reviews
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Miguel Guzman give 5 stars
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sealed the header to the head well.
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Exhaust Manifold Nuts
Great OEM product
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Expensive suckers
These are some nice hardware, hate to think that the nuts are only good for one time use?
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oem exhaust lock nut
oem part at replacement part price. thanks